Supporting means for electric apparatus.



No. 854,309, PATENTED MAY 21, 1907. E. GAREBD. SUPPORTING MEANS FORELECTRIC APPARATUS. APPLICATION FILED NOV. 3, 1906.

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No. 854,309. PATENTED MAY 21, 1907.

E. G. REED. SUPPORTING MEANS FOR ELECTRIC APPARATUS.

APPLICATION FILED NOV. 3, 1906.

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% .Q IIIIIii A a I A ATTORNEY Means for Electric. Apparatus, of

UNITED STATES *PATENTt EMERSON c. REED, or WILK'INSBURG,PENNSYLVANIAASSIGNOR 'ro-wEs'r- INGHOUSE' ELECTRIC '& MANUFACTURINGCOMPANY, ACORPORATION OF' PENN SYLVANIA SUPPQRTII IG MEANS FOR ELECTRICAPPARATUS.

1 Specification of Letters Patent.

Patented May 21, 1907.

Application filed N v nber 3,1906. Serial No. 341,922. a

To all whom it mag concern: I

Be it known that I, EMERSON G. REED, a citizen of the United States, anda resident of Wi'lkinsburg, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement in Su ortingwhich the following is a specification.

. if" The," object of my invention is to simple and durable means of thea ores'aid My invention relates to inclosed electric I, apparatus, andhas special reference to means for rigidly'supporting the cores andwindin s of alternating current transformers in suite le tanks or cases.

rovide class that may be readily adjusted to various sizes oftransformers having inclosing tanks which may or may not correspondexactly to the size of the transformer,

Commercial alternating current transform ers are almost universally.rovided with in closing tanks or casin's 0 some kind and,

for transformers of t e smaller sizes, cast iron tanks are oftenemployed. The-transformers themselves, apart from the tanks, compriserelatively heavy core members upon which coils are mounted.Consequently,

theymust be rigidly. supported in the tanks in which they are'located inorder to avoid injury to the conducting leads and to thee);- posedportions of the windings.

In theprior art, projecting ears were often formed integral with, orwere attached to, theinteriorwalls of' the casin sponding ears pro'ectedlaterafi corefs'structure:an were readily secured to the c'asinbypassing clam ing bolts through I 'of electrical apparatus.

holes in t e projections. he limited service to which a single casingcan be applied is the prinoipal disadvantage in an arrangement of thiskind, in consequence of which a great nuniberof patterns and-tools arerequiredf'or molding and finishing casings which are adanted for thevarious transformer sizes orand 7 leads, are sup orted.

and corre y from theso arranged, wit

former siipported therein by means of the improved device ofmyinvention. Fig. 2' is a plan view. of a portion of the transformer andthe support shown in Fig. 1.

Referring to the drawings, the transformerv illustrated comprises alaminated core structure 1, upon which coils 2..are mounted, and

an inclosing tank or casing 3. The laminated core structure 1 is boundtogether at the top and bottom by end plates4, 5, 6, and 7, the upperplates being provided with projectingjears 8 and 9 and the lower plates6 eing provided with projections 10 and 11 which form astandard' or basefor. the assembled transformer. The casing 3 may be of any suitablestructure, a well known form. being illustrated which com rises a castiron tank having cor' rugated wa ls to increase the external radiatingsurface and a ledge or shelf 12 in which 1 suitable bushings 13 for thetransformer Downwardly' extending, wedge-s aped projections 14 havinglongitudinal slots 15 cut in their centers are .provided on twooppositeside walls of the casing substantially at the level of the top of thetransformer core. Atie-bolt 16 is passed. through holesin the projectingears'8 and 9 of the clamping plates 4 and 5 and." isheld in positionrelative thereto by nuts 17 and lock washers 18. The length of the boltis such that whenlit is in position, the transformermay. readilybe'lowered into the casing, the ends of the bolt projecting into theslots 15 of the wedge-shaped projections; Washers 1.9

having beveled surfaces adaptedto engage the.wedgeshaped projections 14,are loose fitted upon the ends of the tie-bolt 16 and adjusting nuts 20are adapted to force the washers against the projectionsv when thetransformer is in position.) The inner surfaces ofthe wed e-shapedprojections 14 are downward, that, as the adjusting nuts20 are forcedagainst the washers 19, the trans-' former coil is forced against thebottom of the transformer casing and is held rigidly-in position. t

The formpf the supporting rejections and the engaging washers may eva'ried, the

other modifications may obviously be efl'ected without departing fromthe spirit/of my invention.

the points of the wedges v The simplicity and security of the clampingdevice, as liereinbefore described, makes it. specially desirable and itis practically impossible for a transformer, once properly fastened inits case, to work loose. Y

Although I have illustrated a core type transformer, the means forclamping the transformer to the. casing is obviously not confined to anyspecific structure and I desire that only such limitations be imposed asare indicated in the appended claims.

I claim as my inventioni 1. The combination with a transformer casing,of adjustable means for supporting a transformer therein. v 4

2. The combination with a transformer comprising a laminatedmagnetizable core, a

supporting frame therefor, and a plurality of coils, of an inclosingcasing, and adjustable means for supporting he transformer in thecasing.

3 The con'ibination' with a transformer and a casing therefor, ofadjustable means comprising a tie-bolt attached to the transformer andend blocks or washers which are forced against the inside walls of thecasing for supporting the transformer in the casing.

4. The coi-nbination with a transformer comprising a laminatedmagnetizable core, a supporting frame therefor, and a plurality ofcoils, of an inclosing casing, and adjustable means comprising atie-bolt that is attached to the transformer core and end blocks orshaped projections for locking the transformer in the casing.

6. The combination with a transformer comprising a laminatedmagnetizable core, a binding end frame therefor, ears projectingoutwardly from the frame, and a plurality of coils mounted on the core,of an inclosing casing for the transformer having wedgeshaped inwardprojections and means comprising a tie-bolt that extends throughsuitable holes in said projecting ears, binding nuts therefor, beveledwashers fitted loosely upon the ends of the tie-bolt, the outer surfacesof which are adapted to engage the wedgeshaped projections on thecasing, and ad justing nutswhich are adaptedto force said washersagainst said projections.

In testimony whereof, I have hereunto subscribed my name this 31st dayof October.

EA IERSON G. REED. Witnesses:

CHAS. B. MoC nnY, Bnmnr IIINES.

